A kind of modified hydrogenation catalyst carrier and preparation method thereof
A hydrogenation catalyst and carrier technology, which is applied in catalyst carriers, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of poor controllability, repeatability and low activity.
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preparation example Construction
[0020] The preparation method of the modified hydrogenation catalyst carrier provided by the invention comprises the following steps:
[0021] (1) immersing the hydrothermally treated carrier in an alkaline solution containing a metal additive compound and drying to obtain a carrier loaded with a metal additive compound;
[0022] (2) The above-mentioned support loaded with the metal promoter compound is immersed in an acidic solution containing the acidic promoter compound, and then dried and calcined, so that the metal promoter compound is converted into a metal promoter compound and the acidic promoter compound is Auxiliary compounds are converted into acidic auxiliaries;
[0023] The metal additive is a Group IA metal component and / or a Group IIA metal component, and the acidic additive is at least one component selected from F, P and B.
[0024] In the preparation process of the modified hydrogenation catalyst carrier, as long as the carrier is hydrothermally treated befo...
preparation example 1
[0037] This preparation example is used to illustrate the preparation method of the carrier provided by the present invention.
[0038] Take by weighing the dry rubber powder that 1000 grams of Changling Catalyst Factory produces (dry basis is 71%, wherein pseudo-boehmite content is 68%, trihydrate alumina content is 5% by weight, and surplus is amorphous alumina) and 30 grams of turmeric powder (product of Henan Lankao Tianjing Rubber Factory) and mix evenly, then add 920 milliliters of aqueous solution containing 28g of nitric acid, and extrude into a butterfly-shaped wet strip with an outer diameter of φ1.1mm on a plunger extruder. Then the butterfly-shaped wet strip was dried at 120° C. for 4 hours, and then calcined at 600° C. for 3 hours to obtain carrier Z.
Embodiment 1
[0040] This example is used to illustrate the modified hydrogenation catalyst carrier provided by the present invention and its preparation method.
[0041] a) Take 200 grams of the carrier Z prepared in Preparation Example 1, first hydrothermally treat the carrier at 135° C. for 12 hours, and then use 165 ml of carrier Z containing 15 g / L Mg(NO) at a temperature of 40° C. 3 ) 2 The aqueous solution (pH value is 11) is saturated and impregnated for 2 hours, and then dried at 200 ° C for 8 hours to obtain a carrier loaded with a metal additive compound;
[0042] b) Put the metal promoter compound-loaded carrier obtained in step a) in 145 ml of 10 g / L H at a temperature of 40°C 3 BO 3 Soaked in an aqueous solution (pH value of 6) for 2 hours, then dried at 120°C for 3 hours, and then roasted at 400°C for 3 hours to obtain a modified hydrogenation catalyst carrier SZ1, which includes a carrier and a carrier loaded on the carrier The metal auxiliary agent and the acidic auxilia...
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